Gas-burner.



T, A. HOLMBERG.

GAS'BURNER.

APPLICATION FILED OCT-12,1916.

Patented Apr. 3, 1917.

l 1: an

GAS-BURNER.

Specification of Letters Patent.

Patented Apr. a, 191W.

Application filed October 12, 1916. Serial No. 125,153.

To all whom it may concern:

Be it known that I, Tnnooonn A. I'IOLM- nnne, a citizen of the UnitedStates, residing at Cleveland, in the county ofCuyahoga and State ofOhio, have invented certain new and useful Improvements in Gas-Burners,of which the following is a specification.

My invention relates to improvements in gas burners, and moreparticularly to that class or type known as inclosed flame gas burners,the present embodiment of this i11- vention being particularly designedand adapted for use in large ovens for providing a proper circulation ofheated air for baking and drying various commercial articles, as inenameling, japanning, baking, drying and the like.

The primary object of the invention is to provide a generally improvedburner of this class which will be exceedinglysimple, cheap, andeflicient in use, as Well as one in which the parts are so constructedand arranged relative to each other as to result in a more perfectcombustion within the generator, im proved means being provided forsupplying air under pressure within the generator, and thereby forcinghighly heated air from the latter into the oven under pressure giving aneven and rapid circulation for driving off dampness and fumes from theoven and articles being baked or. dried.

A further object is the provision of an improved generator or combustionchamber in which a more complete combustion and a more rapid circulationof heated air is pro vided, as Well as one in which the various burnerand air distributing pipes and nozzles will be rendered more durable andefficient in service.

With the above mentioned and other ends in view, the invention consistsin the novel construction, arrangement, and combination of parts,hereinafter described, illustrated in one of its embodiments in theaccompanying drawings, and particularly pointed out in the appendedclaims.

Referring to the drawings, forming a part of this specification, Figure1, is an end view of the front or air and gas receiving end of a burnerconstructed in accordance with this invention.

Fig. 2, a cross sectional view of the same.

Fig. 3, a top plan view of the same, a portion of the generator or flameinclosing casing being broken away for the purpose of Clearerillustration of parts.

Fig. 4, a side elevation of the same, the gas burner pipes beingremoved.

Similar numerals of reference designate like parts throughout all thefigures of the drawings.

The improved gas burner comprises a generator or flame inclosing casing1, which is preferably made up of a series of sections or unitsterminating at their ends in flanges 1 the latter adapted to beconnected in any suitable and convenient manner to form a generator ofsuitable length to conform to the dimensions of the oven in which it isto be used.

The sections or units of the generator casing are preferably provided'at their ends with legs or supports 1 to rest upon the floor of theoven, suitable air circulating passages or recesses 1, being providedbetween the legs or supports and on each side leading to the baseportion of the generator casing.

The end sections or units are preferably provided with cylindrical heads1, the head 1, at the front, being adapted tobe intersected by suitableair and gas conduit pipes 2, and 3, respectively, leading to the airdistribution and gas burner pipes within the casing 1, hereinafterdescribed. The air and gas conduit pipes 2, and 8, may be provided withsuitable valves for-regulating the flow of air and gas, but such valvesforming no part of this invention need not be shown or described.

As a means of heating the air as well as providing for proper combustionwithin the generator casing or combustion chamber provided by the lattersuitable longitudinally extending gas burners 4, are provided, saidburners hin the present instance, being in the form of longitudinallyextending burner pipes suitably spaced apart and communicating with thegas conduit pipe 3, at the front.

As a means of properly distributing the hot air and products ofcombustion from the generator or fiame inclosing casing 1, the latter isprovided with a series of heat distributing laterals or pipes 5,suitably spaced and located, said pipes terminating at their ends inupwardly extending portions 5*, provided with suitable air distributingcaps 5 the latter being spaced above the outlet portions 5 to provideoutlet portions 5,

intermediate the caps 5 and the upwardly extending portions 5*.

As a means of further promoting combustion and accelerating the passageof hot air and the products of combustion from the burners 4, andthrough the heat distributing laterals 5, an air conduit pipe 6, ismounted within the generator casing 1, above the is also provided alongits top and substantially midway between the air distributing pipes G,with vertically extending air distributing pipes 6*, adapted todischarge air within the top or dome portion of the' gen 'erator orflame inclosing casing 1, as shown most clearly in Fig. 2 of thedrawings.

' The air conduit pipe 6, may be supported at suitable intervalsthroughout its length with cross bars 1?, within the casing 1, (see Fig.2,) and it will ,be observed that by reason of'the location of the pipe6, and air distributing laterals 6, above the burner pipes 4, the gasflames issuing from the latter will act to heat the pipe 6,-and laterals6, and

the air issuing from the same, the air issuing from the air distributinglaterals (i and into and through the heat distributing laterals 5,constantly carrying oft and distributing the heated air and the productsof com- .bustion arising from and over the burners 4, and thiscirculation of air also adds longer life to the burner pipes 4C, forobvious reasons.

From the foregoing description, taken in connection with theaccompanying drawings, the operation and advantages of my invention willbe readily understood.

Having thus described one of the embodiments of my invention, what Iclaim and desire to secure by Letters Patent, is,

1. In a gas burner, a generator casing made up or a plurality ofsections open at theirbottoms and provided with heat distributinglateral pipes terminating in upwardly extending portions covered withspaced air distributing caps.

2. In a gas burner, a generator casing open at its bottom and providedat its sides with heat distributing laterals, a pipe provided with airdistributing laterals in alinement with said heat distributing laterals,and gas burners in said casing above said open bottom of said casing andbelow said pipe and air distributing laterals.

8. In a gas burner, a generator easing provided with heat distributinglaterals, an air conduit pipe therein provided with air distributinglaterals in alinement with and leading to said heat distributinglaterals, and gas burner pipes in said generator casing Copies of thispatent may be obtained for below said air conduit pipe and heat and airdistributing laterals.

4. In a gas burner, a flame inclosing generator casing provided withlateral heat distributing pipes, a central air conduit therein providedwith laterals in alinement with and adapted to discharge air throughsaid lateral heat distributing pipes, and gas burners in said casingbelow said air conduit and laterals whereby the latter are heated andthe products of combustion are carried through said heat distributingpipe with the air discharged therein by said air discharging laterals.

5. In a gas burner, an elongated flame inclosing generator casing openat its bottom and provided with supporting legs, a series of lateral airdistributing pipes extending from thesides of said casing, and an airconduit pipe in said casing provided with air distributing laterals inalinement with said lateral air distributing pipes, and upwardlyextending air distributing pipes intermediate the latter and below thedome portion of said casing.

6. In a gas burner, an elongated generatorcasing made up of connectedsections provided vith air inlet passages in their bottom portions andheat distributing lateral pipes at their sides, gas burner pipes abovesaid air inlet passages, and an air conduit pipe above said burner pipesand provided with air distributing laterals adapted to discharge airthrough said heat distributing lateral .pipes whereby the heat andproducts of combustion arising from said burner pipes are carriedthrough said lateral pipes with the air discharged therein by said airdischarging laterals.

7. In a gas burner, an elongated flame inclosing generator casingprovided with an open bottom and air inlet passages leading thereto,heat distributing lateral pipes at the sides of said casing, an airconduit in said casing provided with air distributing laterals inalinement with and adapted to discharge air through said heatdistributing lateral pipes, and gas burner pipes in said casing abovesaid air inlet passages and below Said air conduit and air distributinglaterals whereby the latter are heated and the products of combustionare accelerated in their passage through said heat distributing lateralpipes.

In testimony whereof I have aflixed my signature in the presence of twowitnesses.

THEODORE A. HOLMBERG.

Witnesses JAs. B. OswALn, CA'rI-IARINE 0. Born.

five cents each, by addressing the Commissioner of Patents, Washington,D. G.

